<ul class="sidebar-menu">
    <li class="header">Main Nav</li>
    <li><a href="/test/pages/menu" target="navTab"><i class="fa fa-circle-o"></i><span>数据字典管理</span></a></li>
    <li><a href="javascript:void(0);"><i class="fa fa-circle-o"></i><span>权限管理</span></a></li>
    <li><a href="javascript:void(0);"><i class="fa fa-circle-o"></i><span>菜单管理</span><span class="pull-right-container"><i
            class="fa fa-angle-left pull-right"></i></span></a>
        <ul class="treeview-menu">
            <li><a href="javascript:void(0);"><i class="fa fa-circle-o"></i><span>用户管理</span><span
                    class="pull-right-container"><i class="fa fa-angle-left pull-right"></i></span></a>
                <ul class="treeview-menu">
                    <li><a href="/test/pages/menu" target="navTab"><i class="fa fa-circle-o"></i><span>测试下一级</span></a>
                    </li>
                </ul>
            </li>
            <li><a href="javascript:void(0);"><i class="fa fa-circle-o"></i><span>发件箱</span></a></li>
        </ul>
    </li>
</ul>
